System and method for determination and display of “in-network” caller notification on a mobile device

摘要

System and method for determining whether an incoming call originates from inside or outside of a mobile carriers network and indicates the result to the subscriber. An example system performs a GTT (global title translation) on an incoming number to determine the hosting carrier of any mobile phone number. When the result matches the subscriber's carrier, the mobile device then indicates to the subscriber (i.e. mobile device) that the call is an “in network call.” Results of the comparison are stored and used for later incoming calls. The stored results are refreshed every time or periodically.

主权项

1. A method comprising:
a) determining a network identifier at a mobile switching center for a mobile communications network associated with a call page; b) sending the network identifier over a data channel to a receiving mobile device; c) storing the network identifier in memory of the mobile device; d) upon receipt of the call page at the receiving mobile device, comparing on the receiving mobile device the stored network identifier to a mobile communications network of the receiving mobile device, wherein comparing is not performed at the mobile switching center; e) outputting the results of the comparison on the receiving mobile device; and f) refreshing the stored network identifier by repeating a)-c) if at least one refresh condition is triggered.